TwainSetThreshold Method (GdPictureImaging)

In This Topic

Try to specify the dividing line between black and white. This is the value the Source will use to threshold, if needed, when scanning B&W image.

Syntax

'Declaration
 
Public Function TwainSetThreshold( _
   ByVal Threshold As Integer _
) As Boolean

public bool TwainSetThreshold( 
   int Threshold
)

public function TwainSetThreshold( 
    Threshold: Integer
): Boolean;

public function TwainSetThreshold( 
   Threshold : int
) : boolean;

public: bool TwainSetThreshold( 
   int Threshold
)

public:
bool TwainSetThreshold( 
   int Threshold
)

True if success, else False -> Use TwainGetLastResultCode() and TwainGetLastConditionCode() methods for diagnosing the error.

Remarks

Before using this method check that the TWAIN state is >= 4 (TWAIN_SOURCE_OPEN) To get the TWAIN state, use the TwainGetState() method.